Blockbuster video game Grand Theft Auto V is this week getting an upgraded version developed for the next-generation consoles - the Xbox One and PlayStation 4.

The graphics have been revamped and there's a new first-person mode, but is it worth forking out an additional £50 if you've already got the earlier version?

Here's our guide to the guns-and-gangsters action game, including launch date and improvements.

How much better are the graphics in the new versions?

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There will be a major visual upgrade. The game will run at a 1080p resolution, and at 30 frames per second. Terrain has been entirely overhauled to make it vastly more realistic, and there'll be improvements to lighting and water effects too.

Overall, it'll be a good deal prettier and shinier.

Can I do anything new in the game?

There are no new single-player missions - aside from those exclusive to players who've transferred a save game from a previous generation version, more of which later.

But the new package includes all the downloadable content that's been made available for GTA 5 so far, including new vehicles, weapons and updates.

There is also a new first-person mode.

What happens with the first-person mode?

Players will be able to switch to first-person mode both on foot and while driving - and it's a significant difference to how the controls work and how the game plays.

It'll feel a lot more like a traditional first-person shooter - but there'll be customisable options to automatically switch between views in certain situations, such as entering cover.

Any changes to GTA Online?

The biggest change is that the player cap will see a bump. The online mode will now support up to 30 players on next-generation platforms.

Also, players will be delighted to see a bunch of classic GTA vehicles return to the online arena.

Is there going to be a PC version as well?

There is, but the PC version isn't out until January 27, 2015.

Rockstar Games say the delay is because they needed a little time to make it as awesome as they can.

The firm said on their website: "The game requires a little more development time in order to ensure that it's as amazing and polished as possible."

Do I get anything special for upgrading from the PS3 or Xbox 360 version?

You certainly do. There's a bunch of new weapons and vehicles that'll be available only to players who transfer their save files from previous generation versions.

These include the classic seaplane, the Dodo and an experimental rail-gun.

There's also a few new exclusive missions - including a gritty, film noir-style murder mystery.

There'll also be new stock car races to enjoy, and a new collection challenge - if Franklin uses a camera to photograph all the new Animals in Los Santos, it'll unlock a new underwater vehicle - the Kraken Sub.

You also get a bunch of free in-game cash.

When can I get my hands on it?

GTA V will be available for PlayStation 4 and Xbox One from November 18, 2014. The PC version is out January 27, 2015.